摘要
以跑道形纱线截面形状的假设为基础,从细观几何角度出发,建立了多向纤维缠绕玻璃钢管纤维体积分数的数学模型。由该模型可知,纤维体积分数与纱线宽度、纱线厚度、纤维缠绕循环数、螺旋缠绕角、缠绕初始半径以及纱线间隙有关,而与管长度无关。以4个采用相同原材料、不同缠绕参数缠绕而成的玻璃钢管为样品,分别计算了纤维体积分数的理论值和实际值,结果显示,二者基本符合,证明该模型是可用的,但仍存在一定的差别,最后对引起理论值偏大的原因进行了分析,主要是模型假设的理想化与气泡等的影响。
Based on the hypothesis that the yarns′cross-section shape is race-track and the analysis of microstructure,a mathematical model was proposed for the fiber volume fraction of multidirectional filament wound glass-fiber/epoxy tubes.According to the model,the fiber volume fraction is related to tow bandwidth,tow thickness,total number of winding cycles,helical winding angle,the inner radius of the product and the yarn gap,but not to the length of the cylinder.Furthermore,four specimens were wound with the same materials but different process parameters,and the results indicated that the fiber volume fraction from the model are in basic agreement with that of the experiment,which means though some variations exist,the model is practical.Finally,the main factors leading to the deviations of the theoretical value were analyzed,they were probably attributed to the ideal assumptions,influence of the porosity and so on.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2008年第9期62-66,共5页
Journal of Textile Research
基金
天津市自然科学基金资助项目(0514IMIC04600)
关键词
纤维体积分数
多向纤维缠绕
玻璃钢管
细观结构
fiber volume fraction
multidirectional filament winding
glass-fiber/epoxy tubes
microstructure
